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736 Commits

Author SHA1 Message Date
Peter Rajnoha
7e208d6504 man: dmsetup: -n is shortcut for --notable, not --noheadings
The -n was defined for --notable since beginning, but the man page
got wrong at some time...
2014-08-21 10:26:16 +02:00
Alasdair G Kergon
42e07d2bce dmsetup: Support remove --deferred.
This patch adds a new flag --deferred to dmsetup remove. If this flag is
specified and the device is open, it is scheduled to be deleted on
close.

struct dm_info is extended.

The existing dm_task_get_info() is converted into a wrapper around the
new version dm_task_get_info_with_deferred_remove() so existing binaries
can still use the old smaller structure.

Recompiled code will pick up the new larger structure.

From: Mikulas Patocka <mpatocka@redhat.com>
2014-08-16 00:34:48 +01:00
Peter Rajnoha
d213758e57 man: missing (C)ache in target type lv_attr description 2014-08-15 15:21:15 +02:00
Zdenek Kabelac
f183995f8e cleanup: just easier word wrapping 2014-08-15 15:06:44 +02:00
Zdenek Kabelac
ba7796e055 man: add some more reserved names 2014-08-15 15:06:44 +02:00
Zdenek Kabelac
630fcab420 man: show lv name for lvs
Make it more obvious that either just vg name or lv name or path could
be passed as an argument.
2014-08-15 15:06:44 +02:00
Petr Rockai
ab1887fe47 man: Update the lvscan manpage with a section on --cache. 2014-07-22 22:48:41 +02:00
Zdenek Kabelac
b51f1b3df6 man: lvconvert poolmetadataspare
Add missing description for --poolmetadataspare option.
2014-07-22 22:41:41 +02:00
David Teigland
864ff3cb18 man: rework lvmcache to match lvmthin
Reorganize and rewrite parts to match lvmthin(7).
2014-07-22 15:12:02 -05:00
David Teigland
fe5b282a4a man: lvmcache updates
- use the lvconvert --cachepool syntax to match the lvmthin style
- rewrite removal information
- very minor formatting adjustments
2014-07-21 15:41:42 -05:00
David Teigland
1fe487043d man: use macros for indenting in lvmthin 2014-07-21 10:28:20 -05:00
David Teigland
3e4f24115a man: lvmthin fix line breaks
The html rendering inserted some unpleasant line breaks,
so insert better breaks explicitly.
2014-07-11 15:15:03 -05:00
Zdenek Kabelac
c0ebe78ef8 lvconvert: fix mirror path
lvconvert rewrite commit missed proper handling
of mirror path for --corelog and --mirrorlog options.
Document this even in man page.
2014-07-11 14:12:35 +02:00
Zdenek Kabelac
4bbfac359c man: lvconvert update
Update lvconvert doc for conversion of pools
(thin and cache pools and volumes)

Various more cleanups.
2014-07-11 13:32:23 +02:00
Jonathan Brassow
be75076dfc activation: Add "degraded" activation mode
Currently, we have two modes of activation, an unnamed nominal mode
(which I will refer to as "complete") and "partial" mode.  The
"complete" mode requires that a volume group be 'complete' - that
is, no missing PVs.  If there are any missing PVs, no affected LVs
are allowed to activate - even RAID LVs which might be able to
tolerate a failure.  The "partial" mode allows anything to be
activated (or at least attempted).  If a non-redundant LV is
missing a portion of its addressable space due to a device failure,
it will be replaced with an error target.  RAID LVs will either
activate or fail to activate depending on how badly their
redundancy is compromised.

This patch adds a third option, "degraded" mode.  This mode can
be selected via the '--activationmode {complete|degraded|partial}'
option to lvchange/vgchange.  It can also be set in lvm.conf.
The "degraded" activation mode allows RAID LVs with a sufficient
level of redundancy to activate (e.g. a RAID5 LV with one device
failure, a RAID6 with two device failures, or RAID1 with n-1
failures).  RAID LVs with too many device failures are not allowed
to activate - nor are any non-redundant LVs that may have been
affected.  This patch also makes the "degraded" mode the default
activation mode.

The degraded activation mode does not yet work in a cluster.  A
new cluster lock flag (LCK_DEGRADED_MODE) will need to be created
to make that work.  Currently, there is limited space for this
extra flag and I am looking for possible solutions.  One possible
solution is to usurp LCK_CONVERT, as it is not used.  When the
locking_type is 3, the degraded mode flag simply gets dropped and
the old ("complete") behavior is exhibited.
2014-07-09 22:56:11 -05:00
Peter Rajnoha
da545ce3b4 tools: add --binary arg to pvs,vgs,lvs and {pv,vg,lv}display -C and report/binary_values_as_numeric lvm.conf option
The --binary option, if used, causes all the binary values reported
in reporting commands to be displayed as "0" or "1" instead of descriptive
literal values (value "unknown" is still used for values that could not be
determined).

Also, add report/binary_values_as_numeric lvm.conf option with the same
functionality as the --binary option (the --binary option prevails
if both --binary cmd option and report/binary_values_as_numeric lvm.conf
option is used at the same time). The report/binary_values_as_numeric is
also profilable.

This makes it easier to use and check lvm reporting command output in scripts.
2014-07-04 15:40:17 +02:00
Zdenek Kabelac
eadcea2dae thin: repaired LV uses _meta%d
Don't leave 'regular' LV with reserved suffix for a user.
After succefull repair use 'normal' (non-reserved) LV name
for backup of original metadata.
2014-06-30 12:15:13 +02:00
Peter Rajnoha
b41aa985d7 man: do not mention '(i)nherited' for alloc policy in vg_attr field
VG has nothing to inherit from...
2014-06-26 15:15:10 +02:00
Alasdair G Kergon
867b92b031 man: More /dev/vg and /dev/mapper documentation. 2014-06-23 14:01:31 +01:00
David Teigland
e96a4856e6 man: lvmthin
Clean up inconsistencies in the last change.
Improve some bad formatting.
2014-06-18 14:30:57 -05:00
Peter Rajnoha
fc6e2a703b man: add man page entry for dmsetup info -c -S/--select + minor cleanups 2014-06-18 13:48:27 +02:00
Jonathan Brassow
5ebff6cc9f pvmove: Enable all-or-nothing (atomic) pvmoves
pvmove can be used to move single LVs by name or multiple LVs that
lie within the specified PV range (e.g. /dev/sdb1:0-1000).  When
moving more than one LV, the portions of those LVs that are in the
range to be moved are added to a new temporary pvmove LV.  The LVs
then point to the range in the pvmove LV, rather than the PV
range.

Example 1:
	We have two LVs in this example.  After they were
	created, the first LV was grown, yeilding two segments
	in LV1.  So, there are two LVs with a total of three
	segments.

	Before pvmove:
	      ---------  ---------   ---------
	      | LV1s0 |  | LV2s0 |   | LV1s1 |
	      ---------  ---------   ---------
	         |           |           |
	   -------------------------------------
	PV | 000 - 255 | 256 - 511 | 512 - 767 |
	   -------------------------------------

	After pvmove inserts the temporary pvmove LV:
	          ---------   ---------   ---------
	          | LV1s0 |   | LV2s0 |   | LV1s1 |
	          ---------   ---------   ---------
	              |           |           |
	        -------------------------------------
	pvmove0 |   seg 0   |   seg 1   |   seg 2   |
	        -------------------------------------
	              |           |           |
	        -------------------------------------
	PV      | 000 - 255 | 256 - 511 | 512 - 767 |
	        -------------------------------------

	Each of the affected LV segments now point to a
	range of blocks in the pvmove LV, which purposefully
	corresponds to the segments moved from the original
	LVs into the temporary pvmove LV.

The current implementation goes on from here to mirror the temporary
pvmove LV by segment.  Further, as the pvmove LV is activated, only
one of its segments is actually mirrored (i.e. "moving") at a time.
The rest are either complete or not addressed yet.  If the pvmove
is aborted, those segments that are completed will remain on the
destination and those that are not yet addressed or in the process
of moving will stay on the source PV.  Thus, it is possible to have
a partially completed move - some LVs (or certain segments of LVs)
on the source PV and some on the destination.

Example 2:
	What 'example 1' might look if it was half-way
	through the move.
	             ---------   ---------   ---------
	             | LV1s0 |   | LV2s0 |   | LV1s1 |
	             ---------   ---------   ---------
	                 |           |           |
	           -------------------------------------
	pvmove0    |   seg 0   |   seg 1   |   seg 2   |
	           -------------------------------------
	                 |           |           |
	                 |     -------------------------
	source PV        |     | 256 - 511 | 512 - 767 |
	                 |     -------------------------
	                 |           ||
	           -------------------------
	dest PV    | 000 - 255 | 256 - 511 |
	           -------------------------

This update allows the user to specify that they would like the
pvmove mirror created "by LV" rather than "by segment".  That is,
the pvmove LV becomes an image in an encapsulating mirror along
with the allocated copy image.

Example 3:
	A pvmove that is performed "by LV" rather than "by segment".

	                   ---------   ---------
	                   | LV1s0 |   | LV2s0 |
	                   ---------   ---------
	                       |           |
	                 -------------------------
	        pvmove0  |  * LV-level mirror *  |
	                 -------------------------
                             /                \
	   pvmove_mimage0   /          pvmove_mimage1
	   -------------------------   -------------------------
	   |   seg 0   |   seg 1   |   |   seg 0   |   seg 1   |
	   -------------------------   -------------------------
	        |            |               |           |
	   -------------------------   -------------------------
	   | 000 - 255 | 256 - 511 |   | 000 - 255 | 256 - 511 |
	   -------------------------   -------------------------
	           source PV                    dest PV

The thing that differentiates a pvmove done in this way and a simple
"up-convert" from linear to mirror is the preservation of the
distinct segments.  A normal up-convert would simply allocate the
necessary space with no regard for segment boundaries.  The pvmove
operation must preserve the segments because they are the critical
boundary between the segments of the LVs being moved.  So, when the
pvmove copy image is allocated, all corresponding segments must be
allocated.  The code that merges ajoining segments that are part of
the same LV when the metadata is written must also be avoided in
this case.  This method of mirroring is unique enough to warrant its
own definitional macro, MIRROR_BY_SEGMENTED_LV.  This joins the two
existing macros: MIRROR_BY_SEG (for original pvmove) and MIRROR_BY_LV
(for user created mirrors).

The advantages of performing pvmove in this way is that all of the
LVs affected can be moved together.  It is an all-or-nothing approach
that leaves all LV segments on the source PV if the move is aborted.
Additionally, a mirror log can be used (in the future) to provide tracking
of progress; allowing the copy to continue where it left off in the event
there is a deactivation.
2014-06-17 22:59:36 -05:00
Peter Rajnoha
94316dfe9d report: select: add man pages for report selection feature 2014-06-17 16:27:21 +02:00
Zdenek Kabelac
494db11004 snapshot: %ORIGIN is relative to data size
Let's use the size of origin as the real base for percenta calculation,
and 'silenly' add needed metadata space for snapshot.

So now command   'lvcreate -s -l100%ORIGIN vg/lv' should always create a
snapshot to handle full device overwrite.
2014-06-17 13:41:01 +02:00
Zdenek Kabelac
cd6d6fc24e snapshot: report proper error message
Expresing -lXX%LV is not valid for snapshot, but error message for
snapshost case was not complete and missed %ORIGIN.
Also document correct settings for in manpage properly where
it missed %PVS.
2014-06-17 13:36:33 +02:00
Zdenek Kabelac
f845afe7cf man: dmsetup manglename
More updates to manglename option.
Add reference to LVM2 resource page, since for a long time,
this is the right places for sources for libdevmapper....
2014-06-11 11:11:10 +02:00
Zdenek Kabelac
4db71422a2 man: kiB uppercase 2014-06-11 11:10:56 +02:00
Zdenek Kabelac
d13efac51b man: update lvmthin
Improve graphics form of page and use shorter correct and suggested
forms of thin pool manipulation commands.
2014-06-11 11:10:55 +02:00
Zdenek Kabelac
e156837636 man: more compliant 2014-06-11 11:10:55 +02:00
Zdenek Kabelac
0896987633 man: properly escape -
Dash should be using '\' to be typographically correct.
2014-06-11 11:10:55 +02:00
Zdenek Kabelac
4956091027 man: use bullets 2014-06-11 11:10:55 +02:00
Zdenek Kabelac
d2b60c6e35 man: advertise lvmcache, lvmthin
Add references to new man pages so they get known.
2014-06-11 11:10:54 +02:00
Zdenek Kabelac
93c2614e56 man: document DM_DEFAULT_NAME_MANGLING_MODE
Document DM_DEFAULT_NAME_MANGLING_MODE environmental variable.
(its default setting is build time configurable)
2014-06-05 17:47:21 +02:00
Zdenek Kabelac
965592340d man: cleanup dmsetup
Add few bold texts.
2014-05-26 22:57:20 +02:00
Zdenek Kabelac
3cb2658fb7 dmsetup: add warning
Warn when --udevcookie/DM_UDEV_COOKIE is used with 'dmsetup remove --force'.

When command is doing multiple ioctl operations on a single device,
it may invoke udev activity, that is colliding with further ioctl commands.
The result of such operation becomes unpredictable.
Use of --retry could partially help...
2014-05-26 22:56:30 +02:00
Zdenek Kabelac
496953fb39 cleanup: use y/n instead of y|n
Use same for of yes no query everywhere.
2014-05-22 12:01:43 +02:00
Peter Rajnoha
092659644a man: missing space between option name and value name 2014-05-21 15:51:28 +02:00
Peter Rajnoha
e78092fa3a man: more man page updates for --commandprofile and --metadataprofile split 2014-05-21 14:53:56 +02:00
Peter Rajnoha
b7431f69ed man: update lvm.conf man page for latest changes 2014-05-21 13:25:09 +02:00
Peter Rajnoha
97c91b020e man: update dumpconfig man page for latest changes 2014-05-21 11:01:19 +02:00
Zdenek Kabelac
1ddc68ccd7 man: call installers only when there are set vars.
When MAN7, MAN8CLUSTER or MAN8SYSTEMD_GENERATORS would be empty,
don't call respective INSTALL tools.
On older systems they even generate error causing abort
of makefile target.
2014-05-21 10:52:33 +02:00
Zdenek Kabelac
65b3fe9b05 man: cleanup style 2014-05-20 21:50:28 +02:00
Zdenek Kabelac
477351fc4d man: lvmcache
separate man page for lvm cache
2014-05-18 20:09:47 +02:00
Zdenek Kabelac
b73a786755 man: lvmcache
Migrate cache description into  man(7) entry
(like lvmthin).
2014-05-15 12:13:24 +02:00
Zdenek Kabelac
11bedf1baf display: print skipped prompt
Since decisions in the silent mode may not be always obvious,
print skipped prompt with answer 'n'.

Also document  '-qq' behaviour (single -q only shuts
logging, while -qq sets silent mode).
2014-05-15 12:11:35 +02:00
Zdenek Kabelac
309201a53b man:misc updates 2014-05-15 12:08:35 +02:00
David Teigland
42d7409da2 man: lvmthin cover snapshot merge and xfs
also fix a couple inconsistent example values.
2014-05-14 15:15:35 -05:00
David Teigland
044b796800 man: more lvmthin discard references
and some fixes from Tom.
2014-05-14 15:15:35 -05:00
Alasdair G Kergon
422b3b0fb5 man: Fix man7 dir dependency.
https://bugs.gentoo.org/510202
2014-05-13 11:18:13 +01:00
Peter Rajnoha
2b09def606 man: minor fixes in lvmetad man page
- better add reference to lvm dumpconfig --type default
   than stating that lvmetad is not enabled by default
 - substitute #DEFAULT_PID_DIR# with concrete value
2014-04-23 14:34:42 +02:00
Alasdair G Kergon
b5f8f452ac tools: Add --readonly support.
Offer lock-free access to display virtual machine or clustered VG metadata
while it might be in use.
2014-04-18 02:46:34 +01:00
Alasdair G Kergon
177ece01a9 reports: Use X for unknown LV attr when no dm.
It's safer not to tell people an LV is inactive when we aren't sure.
2014-04-18 02:23:39 +01:00
Peter Rajnoha
a6763c64a7 lvmdump: add -s to gather system info and context (currently systemd-related only)
This is sort of info we always ask people to retrieve when
inspecting problems in systemd environment so let's have this
as part of lvmdump directly.

The -s option does not need to be bound to systemd only. We could
add support for initscripts or any other system-wide/service tracking
info that can help us with debugging problems.
2014-04-15 15:27:30 +02:00
Zdenek Kabelac
db4cf30106 man: cleanup new params
Correcting cachemode args
2014-04-08 11:00:14 +02:00
David Teigland
2fd5c67f32 man: lvmthin clean up lvm.conf references 2014-04-04 09:51:56 -05:00
Alasdair G Kergon
6d2a26f6b6 man: Add lvmthin(7). 2014-04-04 01:14:25 +01:00
David Teigland
f242c0611d man: lvmthin pool space exhaustion
Initial description and instructions for
data/metadata space exhaustion.
2014-04-03 16:20:15 -05:00
David Teigland
7b11b1b4b5 man: add lvmthin man page 2014-04-01 16:04:08 -05:00
Peter Rajnoha
13009adbf2 man: add a note about --profile when using dumpconfig --mergedconfig 2014-04-01 11:19:38 +02:00
Zdenek Kabelac
31d68b7124 man: sort options
Sort order for -C|--columns as with other options,
and use short capital name as the first (as with other options).
Also drop multiple reference for pvs/lvs/vgs, since now
the text for -C is really close to referrence of lvm anyway.
2014-03-30 23:43:31 +02:00
Peter Rajnoha
6d314466f3 man: better formatting for lvm dumpconfig man page 2014-03-27 14:18:41 +01:00
Peter Rajnoha
801d43445d man: add man page for lvm dumpconfig 2014-03-27 14:03:28 +01:00
Zdenek Kabelac
dae455f806 man: colorization fixes
Fix style
2014-03-26 14:11:37 +01:00
Zdenek Kabelac
bda0fe95ad man: add repair info for thin pools
Document lvconvert --repair for thin pools.
2014-03-26 14:11:36 +01:00
Thomas Fehr
5b69bfb6f8 pvdisplay: fix man to refer to sectors, not KB
The PV size is displayed in sectors, not kilobytes
for 'pvdisplay -c'

Signed-off-by: Thomas Fehr <fehr@suse.de>
Acked-by: Hannes Reinecke <hare@suse.de>
2014-03-19 00:49:32 +01:00
Peter Rajnoha
64086c3bd8 doc: cleanup/extend some man pages/conf comments
man/lvm2-activation-generator.8:
  Generator Specification -> Generators Specification
  (this is the exact word in the systemd man page)

conf/example.conf.in:
  cleanup recent edits related to report section

man/lvm.conf.5:
  add a line about a possibility to generate a new
  profile with lvm dumpconfig command as an alternative
  to copying the default profile
2014-03-18 08:28:58 +01:00
Marian Csontos
a31ab7c171 man: Fix man page containing BUILDROOT
This breaks brew/koji as DESTDIR should not be contained in any file and
results in message like:

    + /usr/lib/rpm/check-buildroot
    /builddir/build/BUILDROOT/lvm2-2.02.106-0.311.el7.x86_64/usr/share/man/man8/lvm2-activation-generator.8:.B /builddir/build/BUILDROOT/lvm2-2.02.106-0.311.el7.x86_64/usr/lib/systemd/system-generators/lvm2-activation-generator
    Found '/builddir/build/BUILDROOT/lvm2-2.02.106-0.311.el7.x86_64' in installed files; aborting
    error: Bad exit status from /var/tmp/rpm-tmp.UfX2SX (%install)
2014-03-14 00:36:19 +01:00
Peter Rajnoha
2189d66a27 man: install lvm2-activation-generator man page only on make install_systemd_generators 2014-03-13 13:20:28 +01:00
Peter Rajnoha
031666ef66 man: add man page for lvm2-activation-generator 2014-03-13 13:01:06 +01:00
Zhiqing Zhang
014ba37cb1 lvresize: fix stripe size validation
While stripe size is twice the physical extent size,
the original code will not reduce stripe size to maximum
(physical extent size).

Signed-off-by: Zhiqing Zhang <zhangzq.fnst@cn.fujitsu.com>
2014-02-26 13:25:50 +01:00
Jonathan Brassow
3bb9eda97c man: Enhancements to various man pages for cache[-pool] segtypes
Better formatting.  More consistent naming.  Better clarity.
2014-02-25 12:17:03 -06:00
Alasdair G Kergon
b359b86f88 allocation: improve approx alloc with resize
Start to convert percentage size handling in lvresize to the new
standard.  Note in the man pages that this code is incomplete.
Fix a regression in non-percentage allocation in my last check in.

This is what I am aiming for:

-l<extents>
-l<percent> LV/ORIGIN
	sets or changes the LV size based on the specified quantity
	of logical logical extents (that might be backed by
	a higher number of physical extents)

-l<percent> PVS/VG/FREE
	sets or changes the LV size so as to allocate or free the
	desired quantity of physical extents (that might amount to a
	lower number of logical extents for the LV concerned)

-l+50%FREE - Use up half the remaining free space in the VG when
	carrying out this operation.

-l50%VG - After this operation, this LV should be using up half the
	space in the VG.

-l200%LV - Double the logical size of this LV.

-l+100%LV - Double the logical size of this LV.

-l-50%LV - Reduce the logical size of this LV by half.
2014-02-24 22:48:23 +00:00
Jonathan Brassow
00ce01e52d cache-pool: Change segtype name from cache_pool to cache-pool
Thin pools use "thin-pool" for the segment type name.  To be consistent,
we use "cache-pool" instead of "cache_pool".
2014-02-19 09:26:03 -06:00
Jonathan Brassow
6a00a7e33d RAID: Allow implicit stripe (and parity) when creating RAID LVs
There are typically 2 functions for the more advanced segment types that
deal with parameters in lvcreate.c: _get_*_params() and _check_*_params().
(Not all segment types name their functions according to this scheme.)
The former function is responsible for reading parameters before the VG
has been read.  The latter is for sanity checking and possibly setting
parameters after the VG has been read.

This patch adds a _check_raid_parameters() function that will determine
if the user has specified 'stripe' or 'mirror' parameters.  If not, the
proper number is computed from the list of PVs the user has supplied or
the number that are available in the VG.  Now that _check_raid_parameters()
is available, we move the check for proper number of stripes from
_get_* to _check_*.

This gives the user the ability to create RAID LVs as follows:
# 5-device RAID5, 4-data, 1-parity (i.e. implicit '-i 4')
~> lvcreate --type raid5 -L 100G -n lv vg /dev/sd[abcde]1

# 5-device RAID6, 3-data, 2-parity (i.e. implicit '-i 3')
~> lvcreate --type raid6 -L 100G -n lv vg /dev/sd[abcde]1

# If 5 PVs in VG, 4-data, 1-parity RAID5
~> lvcreate --type raid5 -L 100G -n lv vg

Considerations:
This patch only affects RAID.  It might also be useful to apply this to
the 'stripe' segment type.  LVM RAID may include RAID0 at some point in
the future and the implicit stripes would apply there.  It would be odd
to have RAID0 be able to auto-determine the stripe count while 'stripe'
could not.

The only draw-back of this patch that I can see is that there might be
less error checking.  Rather than informing the user that they forgot
to supply an argument (e.g. '-i'), the value would be computed and it
may differ from what the user actually wanted.  I don't see this as a
problem, because the user can check the device count after creation
and remove the LV if they have made an error.
2014-02-17 20:18:23 -06:00
Jonathan Brassow
f4658b53d7 man: Add example/explanation section for cache LVs to lvm.8
I've added an "Advanced Logical Volume Types" section that I hope
to contain information on the logical volume types that may use
multiple steps and multiple commands to create.  Cache is the
first entry into this section.  I'd like to see thin and RAID in
here in the future.
2014-02-13 11:53:31 -06:00
Jonathan Brassow
907641cd3d cache: Update man page to reflect need for dm-cache 1.3.0
Update the man page so the user knows that dm-cache 1.3.0 module
is needed.  Also, enforce that in the code and print a warning if
the module is not new enough.
2014-02-13 09:13:57 -06:00
Jonathan Brassow
5bfe4aaf95 cache[pool]: Man page updates for lvs, lvcreate, lvconvert 2014-02-12 10:29:07 -06:00
Zdenek Kabelac
40a9c443a9 man: use some existing indentifier
Avoid confusing user, since some may get impression there is
such variable (max_archives) in the config file.
Pick rather something existing.
2014-02-11 18:55:54 +01:00
Peter Rajnoha
1a5062c9a7 cleanup: clarify man pages about lvchange/vgchange -aay, use -aay in lvm2-cluster-activation script 2014-02-11 13:48:04 +01:00
Alasdair G Kergon
83358d4c03 tools: Add internal tags command. 2014-01-30 13:09:15 +00:00
Zdenek Kabelac
f18ee04fab lvmetad: respect LVM_LVMETAD_PIDFILE settings in lvm
Test LVM_LVMETAD_PIDFILE for pid for lvm command.
Fix WHATS_NEW envvar name usage
Fix init order in prepare_lvmetad to respect set vars
and avoid clash with system settings.
Update test to really test the 'is running' message.
2014-01-24 15:59:38 +01:00
Alasdair G Kergon
0a13815e68 pvscan: use format feature flags in lvmetad code
Introduce FMT_OBSOLETE to identify pool metadata and use it and FMT_MDAS
instead of hard-coded format names.
Explain device accesses on pvscan --cache man page.
2014-01-08 02:13:13 +00:00
Ville Skyttä
3776832499 man: syntax and spelling fixes. 2013-12-18 09:03:42 +01:00
Peter Rajnoha
32080c4ff7 device: add physical block size info and make sure VG extent size >= PV's phys. block size 2013-12-12 15:02:36 +01:00
Peter Rajnoha
3eed0aa7dc man: -Z zeroes 4KiB, not just 1KiB 2013-12-12 15:02:12 +01:00
Alasdair G Kergon
16eab3ec08 config: shorten new sig wiping option string
Rename wipe_signatures_on_new_logical_volumes_when_zeroing  to
wipe_signatures_when_zeroing_new_lvs.
2013-12-09 09:35:47 +00:00
Alasdair G Kergon
7b65363bf7 lvconvert: Implement --splitsnapshot. 2013-12-04 02:09:37 +00:00
Peter Rajnoha
6232cac86c vgdisplay: select only active volumes groups if -A option is used
Where "active" means "at least one LV is active in the volume group".
2013-12-03 14:43:00 +01:00
Alasdair G Kergon
84394c0219 lvmetad: extend socket/pid file handling
Make it easier to run a live lvmetad in debugging mode and
to avoid conflicts if multiple test instances need to be run
alongside a live one.

No longer require -s when -f is used: use built-in default.
Add -p to lvmetad to specify the pid file.
No longer disable pidfile if -f used to run in foreground.
If specified socket file appears to be genuine but stale, remove it
before use.
On error, only remove lvmetad socket file if created by the same
process.  (Previous code removes socket even while a running instance
is using it!)
2013-11-29 20:56:29 +00:00
Peter Rajnoha
5968f07fd5 man: lvcreate -W/--wipesignatures 2013-11-27 15:49:15 +01:00
Peter Rajnoha
0a48137d39 pvscan: use major:minor as short form of --major and --minor arg for pvscan --cache
Before, pvscan recognized either:
  pvscan --cache --major <major> --minor <minor>
or
  pvscan --cache <DevicePath>

When the device is gone and we need to notify lvmetad about device
removal, only --major/--minor works as we can't translate DevicePath
into major/minor pair anymore. The device does not exist in the system
and we don't keep DevicePath index in lvmetad cache to make the
translation internally into original major/minor pair. It would be
useless to keep this index just for this one exact case.

There's nothing bad about using "--major <major> --minor <minor>",
but it makes our life a bit harder when trying to make an
interconnection with systemd units, mainly with instantiated services
where only one and only one arg can be passed (which is encoded in the
service name).

This patch tries to make this easier by adding support for recognizing
the "<major>:<minor>" as a shortcut for the longer form
"--major <major> --minor <minor>". The rule here is simple: if the argument
starts with "/", it's a DevicePath, otherwise it's a <major>:<minor> pair.
2013-10-22 13:52:18 +02:00
Alasdair G Kergon
baf95bbff7 cmdline: Add --ignoreskippedcluster.
Accept --ignoreskippedcluster with pvs, vgs, lvs, pvdisplay, vgdisplay,
lvdisplay, vgchange and lvchange to avoid the 'Skipping clustered
VG' errors when requesting information about a clustered VG
without using clustered locking and still exit with success.

The messages can still be seen with -v.
2013-10-01 21:20:10 +01:00
Peter Rajnoha
6553f86818 lvmconf: use_lvmetad=0 on --enable-cluster, reset to default on --disable-cluster
lvmetad is not yet supported in clustered environment so
disable it automatically if using lvmconf --enable-cluster
and reset it to default value if using lvmconf --disable-cluster.

Also, add a few comments in lvm.conf about locking_type vs. use_lvmetad
if setting it for clustered environment.
2013-09-24 14:03:42 +02:00
Alasdair G Kergon
11dc6a03c4 lvs: Add seg_size_pe field.
Requested
https://www.redhat.com/archives/linux-lvm/2013-July/msg00112.html
2013-09-23 21:50:14 +01:00
Alasdair G Kergon
7233e584ad pvmove: Accept PE ranges as start+length. 2013-09-23 19:50:34 +01:00
Jonathan Brassow
c2dd0a832a man: lvs man page was not accurate on the volume health bit of lv_attr
The 'm'ismatches flag only shows after a "check" scrubbing operation -
not after a "check" or "repair" as indicated by the man page.
2013-09-17 23:03:57 -05:00
Alasdair G Kergon
a3a5f58c21 reporting: Add devtypes command.
Add internal devtypes reporting command to display built-in recognised
block device types.  (The output does not include any additional
types added by a configuration file.)

> lvm devtypes -o help
  Device Types Fields
  -------------------
    devtype_all            - All fields in this section.
    devtype_name           - Name of Device Type exactly as it appears in /proc/devices.
    devtype_max_partitions - Maximum number of partitions. (How many device minor numbers get reserved for each device.)
    devtype_description    - Description of Device Type.

> lvm devtypes
  DevType       MaxParts Description
  aoe                 16 ATA over Ethernet
  ataraid             16 ATA Raid
  bcache               1 bcache block device cache
  blkext               1 Extended device partitions
...
2013-09-18 01:09:15 +01:00
Peter Rajnoha
10bc19ec10 doc: add a note about device filtering while lvmetad is used 2013-09-16 16:29:33 +02:00
Peter Rajnoha
008c33a21b tools: add -b/--background for pvscan --cache -aay
Udev daemon has recently introduced a limit on the number of udev
processes (there was no limit before). This causes a problem
when calling pvscan --cache -aay in lvmetad udev rules which
is supposed to activate the volumes. This activation is itself
synced with udev and so it waits for the activation to complete
before the pvscan finishes. The event processing can't continue
until this pvscan call is finished.

But if we're at the limit with the udev process count, we can't
instatiate any more udev processes, all such events are queued
and so we can't process the lvm activation event for which the
pvscan is waiting.

Then we're in a deadlock since the udev process with the
pvscan --cache -aay call waits for the lvm activation udev
processing to complete, but that will never happen as there's
this limit hit with the number of udev processes.

The process with pvscan --cache -aay actually times out eventually
(3min or 30sec, depends on the version of udev).

This patch makes it possible to run the pvscan --cache -aay
in the background so the udev processing can continue and hence
we can avoid the deadlock mentioned above.
2013-09-03 16:49:21 +02:00
Peter Rajnoha
c36dcc1728 man: lvmdump -u -l 2013-08-29 14:20:57 +02:00
Peter Rajnoha
c9258e7f2e man: lvmdump: add doc for -l and -u 2013-08-28 14:59:15 +02:00
Jonathan Brassow
2ef48b91ed pvmove: Allow moving snapshot/origin. Disallow converting and merging LVs
The patch allows the user to also pvmove snapshots and origin logical
volumes.  This means pvmove should be able to move all segment types.
I have, however, disallowed moving converting or merging logical volumes.
2013-08-26 16:36:30 -05:00
Jonathan Brassow
c59167ec13 pvmove: Add support for RAID, mirror, and thin
This patch allows pvmove to operate on RAID, mirror and thin LVs.
The key component is the ability to avoid moving a RAID or mirror
sub-LV onto a PV that already has another RAID sub-LV on it.
(e.g. Avoid placing both images of a RAID1 LV on the same PV.)

Top-level LVs are processed to determine which PVs to avoid for
the sake of redundancy, while bottom-level LVs are processed
to determine which segments/extents to move.

This approach does have some drawbacks.  By eliminating whole PVs
from the allocation list, we might miss the opportunity to perform
pvmove in some senarios.  For example, if we have 3 devices and
a linear uses half of the first, a RAID1 uses half of the first and
half of the second, and a linear uses half of the third (FIGURE 1);
we should be able to pvmove the first device (FIGURE 2).
	FIGURE 1:
        [ linear ] [ -RAID- ] [ linear ]
        [ -RAID- ] [        ] [        ]

	FIGURE 2:
        [  moved ] [ -RAID- ] [ linear ]
        [  moved ] [ linear ] [ -RAID- ]
However, the approach we are using would eliminate the second
device from consideration and would leave us with too little space
for allocation.  In these situations, the user does have the ability
to specify LVs and move them one at a time.
2013-08-23 08:57:16 -05:00
Peter Rajnoha
a854398764 blkdeactivate: change the way blkdeactivate reports status
The blkdeactivate now suppresses error messages from external
tools that are called. Instead, only a summary message "done"
or "skipped" is issued by blkdeactivate as any error in calling
the external tool (e.g. unmounting or deactivating a device) causes
the device to be skipped and the blkdeactivate continues with the
next device in the tree.

Add new -e/--errors switch to display any error messages from
external tools.

Also, suppress any output given by the external tools and add
new -v/--verbose switch to display it including the verbose
output of the tools called (this will enable error reporting
as well).

Also add blkdeactivate -vv for even more debug (the script's debug).
2013-08-13 17:51:23 +02:00
Jonathan Brassow
7e1083c985 RAID: Make "raid1" the default mirror segment type 2013-08-06 14:13:55 -05:00
Peter Rajnoha
9b1834f075 man: pvs -o ba_start,ba_size -> pv_ba_start,pv_ba_size 2013-07-23 14:45:30 +02:00
Jonathan Brassow
eb5a6a0d1a Man Pages: Update man pages to reflect changes to various RAID options
Some of the names for various RAID options have been changed and the man
pages need to reflect it.
lvcreate:
	from: minrecoveryrate	to: [raid]minrecoveryrate
	from: maxrecoveryrate	to: [raid]maxrecoveryrate
	* plus better clarity on what the arg to these options is
	  specifying

lvchange:
	from: minrecoveryrate   to: [raid]minrecoveryrate
	from: maxrecoveryrate   to: [raid]maxrecoveryrate
	* plus better clarity on what the arg to these options is
	  specifying
	from: syncaction        to: [raid]syncaction
	from: writebehind	to  [raid]writebehind
	* plus change arg from BehindCount to IO/count
	from: writemostly	to: [raid]writemostly
	* plus addition to document [:{t|n|y}] option
lvs:
	from: mismatches	to: raid_mismatch_count
	from: sync_action	to: raid_sync_action
	add : raid_min|max_recovery_rate, raid_write_behind
2013-07-22 13:02:32 -05:00
Zdenek Kabelac
3075784955 thin: add spare lvcreate support
Add --poolmetadataspare option and creates and handles
pool metadata spare lv when thin pool is created.
With default setting 'y' it tries to ensure, spare has
at least the size of created LV.
2013-07-18 18:22:44 +02:00
Zdenek Kabelac
915cc5a2fa thin: report 'e' volume type pool metadata spare
Reuse m'e'tadata volume type for spar'e' volume as well.
Essentially they are related and there is no big reason
to introduce new flag.
2013-07-18 18:22:44 +02:00
Zdenek Kabelac
e1e986f16d thin: lvcreate man examples
Add more examples to man page about thin volume snapshot creation
and try to make the text more explicit about size specification.
2013-07-15 15:54:33 +02:00
Peter Rajnoha
bdd2246ce9 man: lvs lv_attr 's(k)ip activation' 2013-07-12 22:24:26 +02:00
Peter Rajnoha
283c93a858 lvs: add 's(k)ip activatoin' lv_attr field
A new 10-th bit in lvs lv_attr field to indicate whether an LV
has the ACTIVATION_SKIP flag attached (stored in metadata).
2013-07-12 20:54:17 +02:00
Peter Rajnoha
ab789c1bcf tools: add --setactivationskip and --ignoreactivationskip to vgchange/lvchange
The lvchange has both -k/--setactivationskip and
-K/--ignoreactivationskip option available for use.

The vgchange has only -K/--ignoreactivationskip, but
not the -k/--setactivationskip as the ACTIVATION_SKIP
flag is an LV property, not a VG one and so we change it
only by using the lvchange...
2013-07-12 20:49:57 +02:00
Peter Rajnoha
7dc8c84b18 activation: add support for skipping activation of selected LVs
Also add -k/--setactivationskip y/n and -K/--ignoreactivationskip
options to lvcreate.

The --setactivationskip y sets the flag in metadata for an LV to
skip the LV during activation. Also, the newly created LV is not
activated.

Thin snapsots have this flag set automatically if not specified
directly by the --setactivationskip y/n option.

The --ignoreactivationskip overrides the activation skip flag set
in metadata for an LV (just for the run of the command - the flag
is not changed in metadata!)

A few examples for the lvcreate with the new options:

  (non-thin snap LV => skip flag not set in MDA + LV activated)
  raw/~ $ lvcreate -l1 vg
    Logical volume "lvol0" created
  raw/~ $ lvs -o lv_name,attr vg/lvol0
    LV    Attr
    lvol0 -wi-a----

  (non-thin snap LV + -ky => skip flag set in MDA + LV not activated)
  raw/~ $ lvcreate -l1 -ky vg
    Logical volume "lvol1" created
  raw/~ $ lvs -o lv_name,attr vg/lvol1
    LV    Attr
    lvol1 -wi------

  (non-thin snap LV + -ky + -K => skip flag set in MDA + LV activated)
  raw/~ $ lvcreate -l1 -ky -K vg
    Logical volume "lvol2" created
  raw/~ $ lvs -o lv_name,attr vg/lvol2
    LV    Attr
    lvol2 -wi-a----

  (thin snap LV => skip flag set in MDA (default behaviour) + LV not activated)
  raw/~ $ lvcreate -L100M -T vg/pool -V 1T -n thin_lv
    Logical volume "thin_lv" created
  raw/~ $ lvcreate -s vg/thin_lv -n thin_snap
    Logical volume "thin_snap" created
  raw/~ $ lvs -o name,attr vg
    LV        Attr
    pool      twi-a-tz-
    thin_lv   Vwi-a-tz-
    thin_snap Vwi---tz-

  (thin snap LV + -K => skip flag set in MDA (default behaviour) + LV activated)
  raw/~ $ lvcreate -s vg/thin_lv -n thin_snap -K
    Logical volume "thin_snap" created
  raw/~ $ lvs -o name,attr vg/thin_lv
    LV      Attr
    thin_lv Vwi-a-tz-

  (thins snap LV + -kn => no skip flag in MDA (default behaviour overridden) + LV activated)
  [0] raw/~ # lvcreate -s vg/thin_lv -n thin_snap -kn
    Logical volume "thin_snap" created
  [0] raw/~ # lvs -o name,attr vg/thin_snap
    LV        Attr
    thin_snap Vwi-a-tz-
2013-07-12 20:39:07 +02:00
Peter Rajnoha
2c4f81634f man: refine doc for config profiles 2013-07-04 12:09:21 +02:00
Peter Rajnoha
0a5b68e87b man: document profile config and related options
Document following items:
  configuration cascade (man lvm.conf)
  --profile ProfileName (man lvm)
  --detachprofile (man vgchange/lvchange)
  -o vg_profile/lv_profile (man vgs/lvs)

Also document --config a bit so we can see where it fits in the
configuration cascade - will be documented more in following commit...
2013-07-03 16:49:26 +02:00
Alasdair G Kergon
c2dc21d89f text: miscellaneous comments & message tweaks 2013-06-15 01:28:54 +01:00
Peter Rajnoha
dba53681a5 man: refine lvm.conf and man page documentation for autoactivation feature 2013-06-14 10:02:56 +02:00
Zdenek Kabelac
87aca628d6 thin: lvresize supports pool metadata resize
Add support for lvresize of thin pool metadata device.

lvresize --poolmetadatasize +20   vgname/thinpool_lv

or

lvresize -L +20 vgname/thinpool_lv_tmeta

Where the second one allows all the args for resize (striping...)
and the first option resizes accoding to the last metadata lv segment.
2013-06-11 14:05:20 +02:00
Jonathan Brassow
562c678ee2 DM RAID: Add ability to throttle sync operations for RAID LVs.
This patch adds the ability to set the minimum and maximum I/O rate for
sync operations in RAID LVs.  The options are available for 'lvcreate' and
'lvchange' and are as follows:
  --minrecoveryrate <Rate> [bBsSkKmMgG]
  --maxrecoveryrate <Rate> [bBsSkKmMgG]
The rate is specified in size/sec/device.  If a suffix is not given,
kiB/sec/device is assumed.  Setting the rate to 0 removes the preference.
2013-05-31 11:25:52 -05:00
Peter Rajnoha
5e7cdd60f0 man: ea_start/ea_size -> ba_start/ba_size 2013-05-30 11:45:44 +02:00
Peter Rajnoha
732859d21f refactor: rename embedding area -> bootloader area 2013-05-28 12:37:22 +02:00
Alasdair G Kergon
2fbe1e6e00 rephrasing: miscellaneous changes
Miscellaneous changes to messages, man pages, comments and WHATS_NEW.
2013-05-15 01:50:42 +01:00
Alasdair G Kergon
c6cf2ed7fd commands: accept --yes globally
Accept --yes on all commands, even ones that don't today have prompts,
so that test scripts that don't care about interactive prompts no
longer need to deal with them.

But continue to mention --yes only in the command prototypes that
actually use it.
2013-05-14 18:45:37 +01:00
Zdenek Kabelac
e926f22457 man: updates 2013-05-13 13:09:30 +02:00
Zdenek Kabelac
3f7de58e96 man: lvextend --use-policies
Add missing man info.
2013-04-25 17:33:24 +02:00
Jonathan Brassow
2e0740f7ef RAID: Add writemostly/writebehind support for RAID1
'lvchange' is used to alter a RAID 1 logical volume's write-mostly and
write-behind characteristics.  The '--writemostly' parameter takes a
PV as an argument with an optional trailing character to specify whether
to set ('y'), unset ('n'), or toggle ('t') the value.  If no trailing
character is given, it will set the flag.
Synopsis:
        lvchange [--writemostly <PV>:{t|y|n}] [--writebehind <count>] vg/lv
Example:
        lvchange --writemostly /dev/sdb1:y --writebehind 512 vg/raid1_lv

The last character in the 'lv_attr' field is used to show whether a device
has the WriteMostly flag set.  It is signified with a 'w'.  If the device
has failed, the 'p'artial flag has priority.

Example ("nosync" raid1 with mismatch_cnt and writemostly):
[~]# lvs -a --segment vg
  LV                VG   Attr      #Str Type   SSize
  raid1             vg   Rwi---r-m    2 raid1  500.00m
  [raid1_rimage_0]  vg   Iwi---r--    1 linear 500.00m
  [raid1_rimage_1]  vg   Iwi---r-w    1 linear 500.00m
  [raid1_rmeta_0]   vg   ewi---r--    1 linear   4.00m
  [raid1_rmeta_1]   vg   ewi---r--    1 linear   4.00m

Example (raid1 with mismatch_cnt, writemostly - but failed drive):
[~]# lvs -a --segment vg
  LV                VG   Attr      #Str Type   SSize
  raid1             vg   rwi---r-p    2 raid1  500.00m
  [raid1_rimage_0]  vg   Iwi---r--    1 linear 500.00m
  [raid1_rimage_1]  vg   Iwi---r-p    1 linear 500.00m
  [raid1_rmeta_0]   vg   ewi---r--    1 linear   4.00m
  [raid1_rmeta_1]   vg   ewi---r-p    1 linear   4.00m

A new reportable field has been added for writebehind as well.  If
write-behind has not been set or the LV is not RAID1, the field will
be blank.
Example (writebehind is set):
[~]# lvs -a -o name,attr,writebehind vg
  LV            Attr      WBehind
  lv            rwi-a-r--     512
  [lv_rimage_0] iwi-aor-w
  [lv_rimage_1] iwi-aor--
  [lv_rmeta_0]  ewi-aor--
  [lv_rmeta_1]  ewi-aor--

Example (writebehind is not set):
[~]# lvs -a -o name,attr,writebehind vg
  LV            Attr      WBehind
  lv            rwi-a-r--
  [lv_rimage_0] iwi-aor-w
  [lv_rimage_1] iwi-aor--
  [lv_rmeta_0]  ewi-aor--
  [lv_rmeta_1]  ewi-aor--
2013-04-15 13:59:46 -05:00
Jonathan Brassow
ff64e3500f RAID: Add scrubbing support for RAID LVs
New options to 'lvchange' allow users to scrub their RAID LVs.
Synopsis:
	lvchange --syncaction {check|repair} vg/raid_lv

RAID scrubbing is the process of reading all the data and parity blocks in
an array and checking to see whether they are coherent.  'lvchange' can
now initaite the two scrubbing operations: "check" and "repair".  "check"
will go over the array and recored the number of discrepancies but not
repair them.  "repair" will correct the discrepancies as it finds them.

'lvchange --syncaction repair vg/raid_lv' is not to be confused with
'lvconvert --repair vg/raid_lv'.  The former initiates a background
synchronization operation on the array, while the latter is designed to
repair/replace failed devices in a mirror or RAID logical volume.

Additional reporting has been added for 'lvs' to support the new
operations.  Two new printable fields (which are not printed by
default) have been added: "syncaction" and "mismatches".  These
can be accessed using the '-o' option to 'lvs', like:
	lvs -o +syncaction,mismatches vg/lv
"syncaction" will print the current synchronization operation that the
RAID volume is performing.  It can be one of the following:
        - idle:   All sync operations complete (doing nothing)
        - resync: Initializing an array or recovering after a machine failure
        - recover: Replacing a device in the array
        - check: Looking for array inconsistencies
        - repair: Looking for and repairing inconsistencies
The "mismatches" field with print the number of descrepancies found during
a check or repair operation.

The 'Cpy%Sync' field already available to 'lvs' will print the progress
of any of the above syncactions, including check and repair.

Finally, the lv_attr field has changed to accomadate the scrubbing operations
as well.  The role of the 'p'artial character in the lv_attr report field
as expanded.  "Partial" is really an indicator for the health of a
logical volume and it makes sense to extend this include other health
indicators as well, specifically:
        'm'ismatches:  Indicates that there are discrepancies in a RAID
                       LV.  This character is shown after a scrubbing
                       operation has detected that portions of the RAID
                       are not coherent.
        'r'efresh   :  Indicates that a device in a RAID array has suffered
                       a failure and the kernel regards it as failed -
                       even though LVM can read the device label and
                       considers the device to be ok.  The LV should be
                       'r'efreshed to notify the kernel that the device is
                       now available, or the device should be 'r'eplaced
                       if it is suspected of failing.
2013-04-11 15:33:59 -05:00
Zdenek Kabelac
c22e925ce4 man: lvceate document external origin snapshot
Document added support for external origin.
2013-04-05 14:15:03 +02:00
Zdenek Kabelac
ddafa0115e man: updates for lvconvert and lvcreate
Cleanup and improvement on man pages.
2013-04-05 14:14:20 +02:00
Peter Rajnoha
28a5f6bc38 man: update pvcreate/pvs/vgconvert man page to cover embedding area support 2013-02-26 14:46:42 +01:00
Zdenek Kabelac
b73de73151 thin: lvconvert support for external origin
Add basic support for converting LV into an external origin volume.

Syntax:

lvconvert --thinpool vg/pool  --originname renamed_origin -T origin

It will convert volume  'origin' into a thin volume, which will
use 'renamed_origin' as an external read-only origin.
All read/write into origin will go via 'pool'.

renamed_origin volume is read-only volume, that could be activated
only in read-only mode, and cannot be modified.
2013-02-23 10:38:20 +01:00
Jonathan Brassow
3ab46449f4 vgimport: Allow '--force' to import VGs with missing PVs.
When there are missing PVs in a volume group, most operations that alter
the LVM metadata are disallowed.  It turns out that 'vgimport' is one of
those disallowed operations.  This is bad because it creates a circular
dependency.  'vgimport' will complain that the VG is inconsistent and that
'vgreduce --removemissing' must be run.  However, 'vgreduce' cannot be run
because it has not been imported.  Therefore, 'vgimport' must be one of
the operations allowed to change the metadata when PVs are missing.  The
'--force' option is the way to make 'vgimport' happen in spite of the
missing PVs.
2013-02-20 16:37:41 -06:00
Peter Rajnoha
cad22be394 lvconvert: allow lvconvert --stripes/stripesize only with -mirrors/--repair/--thinpool
Also, update lvconvert man page to reflect this and make clear that
the --stripes/stripesize is applied to newly allocated space only.
2012-12-11 15:50:25 +01:00
Zdenek Kabelac
99018b37ee thin: lvconvert supports swapping metadata device
Support swapping of metadata device if the thin pool already
exists. This way it's easy to i.e. resize metadata or their
repair operation.

User may create some empty LV, replace existing metadata
or dump and restore them into bigger LV.
2012-12-02 18:01:27 +01:00
Jonathan Brassow
83978cdec8 man page (lvcreate): Better explain stripes option for RAID 4/5/6.
Do a better job explaining the '--stripes/-i' option to lvcreate
when it comes to RAID 4/5/6.  The extra devices needed for parity
are implicitly added to the argument given.  So a 5-device RAID6
logical volume is created with '-i 3' - indicating 3 stripes plus
the implicit 2 devices needed for RAID6.
2012-11-30 16:47:02 -06:00
Zdenek Kabelac
09b7ceea95 thin: allow restore with --force
Allow restoring metadata with thin pool volumes.
No validation is done for this case within vgcfgrestore tool -
thus incorrect metadata may lead to destruction of pool content.
2012-11-27 14:08:24 +01:00
Alasdair G Kergon
5ef6ca00b9 docs: host tags has a default volume_list
Document that lvm.conf activation/volume_list defaults to @* when
there's a host tag.
2012-11-19 22:29:23 +00:00
Petr Rockai
c907ee0351 Document use_lvmetad and global_filter in lvm.conf.5. 2012-11-19 16:20:54 +01:00
Zdenek Kabelac
bf1cf1459f thin: man page updates
Cover latest extensions of lvconvert functionality.
Update also lvcreate page.
2012-11-19 14:38:17 +01:00
Jonathan Brassow
e191780947 RAID: Make RAID 4/5/6 display sync status under heading s/Copy%/Cpy%Sync
The heading 'Copy%' is specific to PVMOVE volumes, but can be generalized
to apply to LVM mirrors also.  It is a bit awkward to use 'Copy%' for
RAID 4/5/6, however - 'Sync%' would be more appropriate.  This is why
RAID 4/5/6 have not displayed their sync status by any means available to
'lvs' yet.

Example (old):
[root@hayes-02 lvm2]# lvs vg
  LV      VG   Attr      LSize  Pool Origin Data%  Move Log Cpy%Sy Convert
  lv    vg   -wi-a----  1.00g
  raid1 vg   rwi-a-r--  1.00g                             100.00
  raid4 vg   rwi-a-r--  1.01g
  raid5 vg   rwi-a-r--  1.01g
  raid6 vg   rwi-a-r--  1.01g

This patch changes the heading to 'Cpy%Sync' and allows RAID 4/5/6 to print
their sync percent in this field.

Example (new):
[root@hayes-02 lvm2]# lvs vg
  LV    VG   Attr      LSize Pool Origin Data%  Move Log Cpy%Sync Convert
  lv    vg   -wi-a---- 1.00g
  raid1 vg   rwi-a-r-- 1.00g                               100.00
  raid4 vg   rwi-a-r-- 1.01g                               100.00
  raid5 vg   rwi-a-r-- 1.01g                               100.00
  raid6 vg   rwi-a-r-- 1.01g                               100.00
2012-10-23 21:19:27 -05:00
Jonathan Brassow
67379a3ffd RAID: Add "raid10" to lvcreate man page.
In addition to reference to raid10 under the '--type' argument, an
example creating a RAID10 LV has been added.
2012-10-15 15:41:14 -05:00
Alasdair G Kergon
78dafcba99 lvmetad: use -l for logging level not -d 2012-10-15 10:44:43 +01:00
Alasdair G Kergon
a0e60d27ff lvmetad: document and tidy cmdline args
Try to bring the lvmetad usage text and man page closer to the code.
There seem to be 3 useful ways to use -d with lvmetad at the moment:
  -d all
  -d wire
  -d debug
(They can also be comma-separated like -d wire,debug.)
Prior to the last release, -d, -dd and -ddd were supported.
Fail if an unrecognised debug arg is supplied on the command line.
Change -V to report the same version as the lvm binary: previously it
just reported version 0.
2012-10-15 02:06:27 +01:00
Peter Rajnoha
c698ee14bb scripts: introduce blkdeactivate
blkdeactivate - utility to deactivate block devices

Traverses the tree of block devices and tries to deactivate them.
Currently, it supports device-mapper-based devices together with LVM.
See man/blkdeactivate.8 for more info.

It is targeted for use during shutdown to properly deactivate the
whole block device stack - systemd and init scripts are provided as
well. However, it might be used directly on command line too.

Please, see the commentary at the top of the blkdeactivate script
for dependencies and versions of other utilities required.
2012-10-12 14:44:24 +02:00
Zdenek Kabelac
316ce655a3 thin: raise required version to 1.4
Stay safe and require 1.4 (kernel 3.6) for non-power-of-2
support for thin pool chunk_size.
2012-10-11 14:09:07 +02:00
Zdenek Kabelac
ca09c9ab4c thin: support non power of 2 chunk size
Support thin chunk size with multiple of 64KiB if user has
thin-pool target version at least 1.2.
2012-10-10 21:21:00 +02:00
Peter Rajnoha
a5306421dd man: dmsetup mangle also processes UUIDs now 2012-10-10 17:16:15 +02:00
Zdenek Kabelac
a27650cc98 thin: lvconvert
Update code for lvconvert.
Change the lvconvert user interface a bit - now we require 2 specifiers
--thinpool   takes LV name for data device (and makes the name)
--poolmetadata  takes LV name for metadata device.

Fix type in thin help text -z -> -Z.

Supported is also new flag --discards for thinpools.
2012-10-03 15:13:33 +02:00
Alasdair G Kergon
290ae4791e lvs: add partial attribute 2012-09-19 12:49:40 +01:00
Alasdair G Kergon
438e0050df config: add silent mode
Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.

When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]

Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
2012-08-25 20:35:48 +01:00
Zdenek Kabelac
80bf4eb035 thin: fix man page for lvs
Renamed discard -> discards
2012-08-09 16:25:25 +02:00
Alasdair G Kergon
701b4a8363 thin: use discards as plural rather than singular
Global change from --discard to --discards, as that feels more natural.
2012-08-07 21:24:41 +01:00
Alasdair G Kergon
597590da74 man: expand lvchange --discard entry 2012-08-07 20:20:16 +01:00
Alasdair G Kergon
016997acaf man: document allocation process in lvm.8 2012-08-07 02:06:42 +01:00
Alasdair G Kergon
25ae0b39b7 dmsetup: allow --noflush with status/wait for thin
Allow --noflush with dmsetup status and wait (for thin target 1.3.0 /
ioctl 4.23.0).
2012-07-27 20:03:07 +01:00
Zdenek Kabelac
48367c5be9 thin: add lvchange for discard and zero change
Update lvchange to allow change of 'zero' flag for thinpool.
Add support for changing discard handling.

N.B.  from/to  ignore could be only changed for inactive pool.
2012-07-18 14:38:34 +02:00
Zdenek Kabelac
46b9cc1248 thin: add reporting of discard for thin pool
New field  "discard" is added for lvs reporting of lv segment.
Reported as one character:
 (i)gnore
 (n)opassdown
 (p)assdown

lvs -o+discard
2012-07-18 14:37:44 +02:00
Zdenek Kabelac
ebbf7d8e68 thin: add discard support for thin pool
Add arg support for discard.
Add discard ignore, nopassdown, passdown (=default) support.
Flags could be set per pool.

lvcreate [--discard {ignore|no_passdown|passdown}]  vg/thinlv
2012-07-18 14:36:57 +02:00
Peter Rajnoha
cd8ea8b437 activate: skip manual activation for --sysinit -aay
When --sysinit -a ay is used with vg/lvchange and lvmetad is up and running,
we should skip manual activation as that would be a useless step - all volumes
are autoactivated once all the PVs for a VG are present.

If lvmetad is not active at the time of the vgchange --sysinit -a ay
call, the activation proceeds in standard 'manual' way.

This way, we can still have vg/lvchange --sysinit -a ay called
unconditionally in system initialization scripts no matter if lvmetad
is used or not.
2012-07-10 14:01:33 +02:00
Peter Rajnoha
a54285a715 man: --activate ay and auto_activation_volume_list 2012-06-29 12:40:26 +02:00
Peter Rajnoha
2729720fd3 args: add --activate synonym for --available arg
We're refererring to 'activation' all over the code and we're talking
about 'LVs being activated' all the time so let's use 'activation/activate'
everywhere for clarity and consistency (still providing the old
'available' keyword as a synonym for backward compatibility with
existing environments).
2012-06-28 09:42:44 -04:00
Zdenek Kabelac
0a9f894ff0 Initial support for lvconvert for thin pool volumes.
Support has many limitations and lots of FIXMEs inside,
however it makes initial task when user creates a separate LV for
thin pool data and thin metadata already usable, so let's enable
it for testing.

Easiest API:

lvconvert --chunksize XX --thinpool data_lv  metadata_lv

More functionality extensions will follow up.

TODO: Code needs some rework since a lot of same code is getting copied.
2012-05-09 12:17:06 +00:00
Alasdair Kergon
34fbbfe34e Remove statement that snapshots cannot be tagged from lvm man page. 2012-04-26 15:24:46 +00:00
Zdenek Kabelac
a326be8f48 Sort lvs options by alphabet 2012-04-24 12:14:17 +00:00
Zdenek Kabelac
a8f352fd56 Update some lvs column names
Fix thin_pool -> pool_lv
Add more fields supported by thin provisioning.
Keep fields alphabetically sorted for easier lookup.
2012-04-24 12:13:29 +00:00
Petr Rockai
23957e16d5 Add a rudimentary lvmetad manpage. 2012-04-15 15:40:48 +00:00
Zdenek Kabelac
c63b155d16 Update man pages
Use one style for man pages.
2012-04-11 12:42:10 +00:00
Peter Rajnoha
3be9089cd3 Add 'vgscan --cache' functionality for consistency with 'pvscan --cache'.
Calling vgscan alone should reuse information from the lvmetad (if running).
The --cache option should initiate direct device scan and update lvmetad
appropriately (if running).

This is mainly for vgscan to behave consistently compared to pvscan.
2012-03-27 11:04:46 +00:00
Zdenek Kabelac
34a45b0029 Fix warn message and update man page
Fix regression in man page. The chunk size is in kilobyte units on command line
input though in the source code we work with sector size unit
so make it clear in the man page.

Update chunksize for thin pool in man page - it's max value is 1024M == 1G.

Fix warning range message to show proper max value.
2012-03-06 09:22:02 +00:00
Alasdair Kergon
b343d75a5a Switch pvscan --cache major:minor to --major --minor. 2012-03-06 02:30:49 +00:00
Alasdair Kergon
35216ca66c Scan all devices for lvmetad if 'pvscan --cache' used without device list. 2012-03-03 18:32:53 +00:00
Alasdair Kergon
d742cdf327 Change pvscan --lvmetad to pvscan --cache. 2012-03-02 18:09:46 +00:00
Alasdair Kergon
d06f64dd29 Allow multiple device names with pvscan --lvmetad.
Hold global lock in pvscan --lvmetad.  (This might need refinement.)
Add PV name to "PV gone" messages.
Adjust some log message severities.  (More changes needed.)
2012-03-02 16:58:41 +00:00
Zdenek Kabelac
c219934a87 Add _rimage as reserved suffix 2012-03-01 10:39:21 +00:00
Alasdair Kergon
d6f989d1ee spacing 2012-02-28 18:17:37 +00:00
Alasdair Kergon
e13efd652c I don't think -u is meant to be used with lvmetad 2012-02-28 18:16:23 +00:00
Petr Rockai
f0582ee661 Add tentative documentation of pvscan --lvmetad to the pvscan manpage. 2012-02-26 08:45:07 +00:00
Peter Rajnoha
3b4be8a99d Add dmsetup manpage entries for mangle command and --manglename option. 2012-02-15 12:25:23 +00:00
Mike Snitzer
d658922f36 Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
snapshot (m)erge failed, suspended snapshot (M)erge failed
2012-01-20 22:03:03 +00:00
Zdenek Kabelac
43254b1185 Thin extend lvcreate man page about snapshot support 2012-01-20 10:50:39 +00:00
Alasdair Kergon
8a35706cb1 Add dmsetup 'wipe_table' to replace table with one that uses error target. 2012-01-18 18:52:02 +00:00
Alasdair Kergon
8f95d94b4f Show read-only activation in display tools. 2012-01-12 16:58:43 +00:00
Alasdair Kergon
b5ca3d1ed0 Add activation/read_only_volume_list to override LV permission in metadata. 2012-01-12 02:32:09 +00:00
Peter Rajnoha
e33fd978a8 Support different device name types on output of dmsetup deps, ls and info -c command.
Add 'blkdevname' and 'blkdevs_used' field to dmsetup info -c -o.
Add 'blkdevname' option to dmsetup ls --tree to see block device names.
Add '-o options' to dmsetup deps and ls to select device name type on output.
2012-01-11 12:46:19 +00:00
Zdenek Kabelac
e49622ef17 Improve readahead in dmsetup man page 2012-01-09 12:28:47 +00:00
Zdenek Kabelac
4fbde0143a Support rounding of percentage upward
We want to keep this logic -
when LV is extend - extend the LV by at least given amount,
when LV is reduced - reduce the LV by at most given amount.

So for this the rounding needs to be used.
Current logic which seems to satisfy give rule is to round up all
extent values for LV resize upward except for values with '-' sign
that are round downward.

This patch also fixes the problem when  lvextend --use-polices tried
to extend LV the by i.e. 20% - but the resulting 20% were smaller
the extent size thus before this patch no extension happened.
2012-01-05 15:38:18 +00:00
Zdenek Kabelac
59e1bb62de Updated documentation for dmeventd.
Update man page style.
Mention raid and thin plugins.
Update help text printed by command to match man page.
2011-12-22 15:50:38 +00:00
Zdenek Kabelac
301e821d3b Thin man page update 2011-12-21 13:58:38 +00:00
Alasdair Kergon
8de2ef4f3b refer to kernel docs for target info
FIXME thin still missing
2011-11-30 22:32:37 +00:00
Jonathan Earl Brassow
0c506d9a40 Support the ability to replace specific devices in a RAID array.
RAID is not like traditional LVM mirroring.  LVM mirroring required failed
devices to be removed or the logical volume would simply hang.  RAID arrays can
keep on running with failed devices.  In fact, for RAID types other than RAID1,
removing a device would mean substituting an error target or converting to a
lower level RAID (e.g. RAID6 -> RAID5, or RAID4/5 to RAID0).  Therefore, rather
than removing a failed device unconditionally and potentially allocating a
replacement, RAID allows the user to "replace" a device with a new one.  This
approach is a 1-step solution vs the current 2-step solution.

example> lvconvert --replace <dev_to_remove> vg/lv [possible_replacement_PVs]

'--replace' can be specified more than once.

example> lvconvert --replace /dev/sdb1 --replace /dev/sdc1 vg/lv
2011-11-30 02:02:10 +00:00
Alasdair Kergon
2ce5ca4375 Incomplete documentation is worse than no documentation.
Any documentation less-detailed than Documentation/device-mapper is
dangerous for the non-trivial ctr lines.  And anyway, this should be in s4
not here.
2011-11-13 01:41:57 +00:00
Zdenek Kabelac
5e62f7038f Update dmsetup man page
Use standard manpage style.
Keep options and commands in alphabetic order.
Added at least a very simply info about some other targets.
TODO: documenting targest needs far more work...
2011-11-12 22:48:44 +00:00
Zdenek Kabelac
3d9513ced4 Thin lvcreate manpage
Merge thin creation into standard 1st. lvcreate.
Update snapshot for thin support.
2011-11-10 12:41:39 +00:00
Zdenek Kabelac
65b977f249 Update lvs man page style. 2011-11-08 12:16:53 +00:00
Zdenek Kabelac
485cac0e86 More lvcreate man updates
Use  { Name | Path } consistently like elsewhere.
Move --thin alphabetically before --type.
2011-11-08 12:12:31 +00:00
Zdenek Kabelac
08525624be Thin lvcreate poolmetadatasize units doc 2011-11-07 10:59:55 +00:00
Zdenek Kabelac
7060c9d942 Thin lvcreate man update
Added poolmetadatasize options
Add an example.
2011-11-04 22:47:17 +00:00
Zdenek Kabelac
dc964ab0d3 Thin uses _tdata instead of _tpool for data LV
Switch to different suffix and keep -tpool reserved for overlay device name.
2011-11-03 14:38:36 +00:00
Zdenek Kabelac
8997872656 More updates for lvcreate manpage 2011-10-30 22:08:21 +00:00
Zdenek Kabelac
070f717131 Continue with lvcreate man page update
Already in WHATS_NEW.
2011-10-28 20:36:05 +00:00
Zdenek Kabelac
620ff9e967 Thin option documentation 2011-10-28 20:33:50 +00:00
Jonathan Earl Brassow
e4eaed8136 Update lvconvert man page to describe '--type <segtype>' argument
Man page changes were not included when the ability to convert from
"mirror" -> "raid1" or "linear" -> "raid1" were made.
2011-10-25 13:24:23 +00:00
Zdenek Kabelac
3bc417488d Thin pool now support chunk size as well
Use chunksize option to specify data_block_size for thin pool target.
Drop low_water_mark to zero.
2011-10-21 09:55:07 +00:00
Zdenek Kabelac
4d83891a67 Make units for chunksize more obvious 2011-10-21 09:53:16 +00:00
Zdenek Kabelac
789fa12d62 Improve lvcreate man page
Split syntax for thin-pool since it cannot be fully matched with snapshot.
So to avoid more confusion - take thin support into separate line.

Though still significant updates are needed for thin provisioning.
2011-10-19 16:49:13 +00:00
Zdenek Kabelac
d495dd40b2 Add few more protected names 2011-10-19 16:45:35 +00:00
Alasdair Kergon
c540e5d1b8 Clarify multi-name device filter pattern matching explanation in lvm.conf.5. 2011-10-04 20:45:36 +00:00
Zdenek Kabelac
d2c116058e CLVMD support for LVM_CLVMD_BINARY and LVM_BINARY
Read 2 environmental vars to learn about overide position for
CLVMD and LVM binaries.

We support LVM_BINARY in other script - and this way we could easily
test restart in our test-suite.
2011-09-24 20:50:35 +00:00
Zdenek Kabelac
a039e204e7 CLVMD bugfix support for args -S -E
Bugfix:
Add (most probably unfinished) support for -E arg with list of exclusive
locks.  (During clvmd restart all exclusive locks would have been lost and
in fact, if there would have been an exclusive lock, usage text would be
printed and clvmd exits.)

Instead of parsing list options multiple times every time some lock UUID is
checked - put them straight into the hash table - make the code easier to
understand as well.

Remove  was_ex_lock() function (replaced with dm_hash_lookup()).

Swap return value for get_initial_state() (1 means success).

Update man pages and usage info for -E option.
2011-09-24 20:48:34 +00:00
Jonathan Earl Brassow
d36644c20d update man page for new RAID lv_attr characters. 2011-09-23 19:21:53 +00:00
Alasdair Kergon
87d8e3c33b missing Makefile dep 2011-09-23 17:05:44 +00:00
Zdenek Kabelac
766d22825b Update dmsetup man page
While dmsetup command properly shows all dmsetup resume supported options,
man page missed to document it.
2011-09-23 09:51:37 +00:00
Zdenek Kabelac
598c92ff5c Build all man pages
When running plain 'make' in man dir - do also those for device-mapper target.
2011-09-23 09:48:21 +00:00
Peter Rajnoha
047e4cd2f5 Add --retry option for dmsetup remove to retry removal if not successful. 2011-09-22 17:12:28 +00:00
Zdenek Kabelac
8f8c5580fd Add support for DM_DEV_DIR
Follow other commands support this directory setting.
Useful for test suite.
2011-09-19 19:36:52 +00:00
Alasdair Kergon
5081181b5d Append z to lv_attr if new blocks will be zeroed. 2011-09-09 01:15:18 +00:00
Alasdair Kergon
dbb48de507 Add a new 'thin_pool' output field to 'lvs.
A gentle reminder that anyone relying on the output of reporting commands
like lvs in scripts must use -o to guarantee they get the fields they expect.

The default sequence of fields can change from release to release.
Equally, the 'attr' fields can have new values introduced and/or characters
appended to them.
2011-09-09 00:54:49 +00:00
Alasdair Kergon
52e3f9dd5e Add 7th lv_attr char to show the related kernel target.
Add thin volume types to lv_attr.
2011-09-08 20:55:39 +00:00
Zdenek Kabelac
8010df8b8a Fix typo 2011-09-07 09:48:49 +00:00
Zdenek Kabelac
59cf7b6f6c Improve man page style
Only reformat man pages.
2011-09-07 08:50:35 +00:00
Alasdair Kergon
9ac61d2ba2 lvcreate parsing for thin provisioning.
The rest is incomplete so this isn't usable yet.
2011-09-06 00:26:42 +00:00
Alasdair Kergon
d854bae8a9 tweak split/track/merge
How do you discover the value of N?
2011-08-19 17:36:13 +00:00
Jonathan Earl Brassow
a2facf4ad4 Add ability to merge back a RAID1 image that has been split w/ --trackchanges
Argument layout is very similar to the merge command for snapshots.
2011-08-18 19:43:08 +00:00
Jonathan Earl Brassow
6d04311efa Add the ability to split an image from the mirror and track changes.
~> lvconvert --splitmirrors 1 --trackchanges vg/lv
The '--trackchanges' option allows a user the ability to use an image of
a RAID1 array for the purposes of temporary read-only access.  The image
can be merged back into the array at a later time and only the blocks that
have changed in the array since the split will be resync'ed.  This
operation can be thought of as a partial split.  The image is never completely
extracted from the array, in that the array reserves the position the device
occupied and tracks the differences between the array and the split image via
a bitmap.  The image itself is rendered read-only and the name (<LV>_rimage_*)
cannot be changed.  The user can complete the split (permanently splitting the
image from the array) by re-issuing the 'lvconvert' command without the
'--trackchanges' argument and specifying the '--name' argument.
	~> lvconvert --splitmirrors 1 --name my_split vg/lv
Merging the tracked image back into the array is done with the '--merge'
option (included in a follow-on patch).
	~> lvconvert --merge vg/lv_rimage_<n>

The internal mechanics of this are relatively simple.  The 'raid' device-
mapper target allows for the specification of an empty slot in an array
via '- -'.  This is what will be used if a partial activation of an array
is ever required.  (It would also be possible to use 'error' targets in
place of the '- -'.)  If a RAID image is found to be both read-only and
visible, then it is considered separate from the array and '- -' is used
to hold it's position in the array.  So, all that needs to be done to
temporarily split an image from the array /and/ cause the kernel target's
bitmap to track (aka "mark") changes made is to make the specified image
visible and read-only.  To merge the device back into the array, the image
needs to be returned to the read/write state of the top-level LV and made
invisible.
2011-08-18 19:38:26 +00:00
Alasdair Kergon
f1c2a5af58 Add -V as short form of --virtualsize in lvcreate. 2011-08-17 15:15:36 +00:00
Milan Broz
7cf607705b Remove obsoleted GULM clvmd cluster locking support. 2011-08-09 18:11:00 +00:00
Zdenek Kabelac
765918a528 Remove --force option from lvrename manpage. 2011-08-04 10:14:42 +00:00
Jonathan Earl Brassow
cac52ca4ce Add basic RAID segment type(s) support.
Implementation described in doc/lvm2-raid.txt.

Basic support includes:
- ability to create RAID 1/4/5/6 arrays
- ability to delete RAID arrays
- ability to display RAID arrays
Notable missing features (not included in this patch):
- ability to clean-up/repair failures
- ability to convert RAID segment types
- ability to monitor RAID segment types
2011-08-02 22:07:20 +00:00
Alasdair Kergon
2243718fae Add framework for validation of ioctls. Doesn't do any checks yet.
dmsetup --checks
libdevmapper: dm_task_enable_checks()
lvm.conf: activation/checks=1
2011-07-01 14:09:19 +00:00
Alasdair Kergon
f96cf55d36 Add age filter to dmsetup udevcomplete_all to minimise concurrency problems. 2011-06-29 21:56:46 +00:00
Alasdair Kergon
e189a84f57 Append 'm' attribute to pv_attr for missing PVs. 2011-06-29 14:56:33 +00:00
Alasdair Kergon
0437bccc3c Move udev_only logic inside stacked node op code.
(We still need to treat add+readhead+del as a no-op.)
Rename udev_fallback to verify_udev_operations.
Rename --udevfallback to --verifyudev
2011-06-27 21:43:58 +00:00
Alasdair Kergon
453cdee51c Permit --available with lvcreate so non-snapshot LVs need not be activated. 2011-06-01 19:21:03 +00:00
Alasdair Kergon
919ab56b6d pre-release clean-ups 2011-04-29 00:21:13 +00:00
Alasdair Kergon
900a267655 Adjust pvmove man page wording.
Add missing --alloc anywhere to example and mention that snapshots and
mirrors can't be moved.
2011-04-28 16:22:47 +00:00
Mike Snitzer
ffcb1b9c2c Improve the discard documentation. Also improve discard code in
pv_manip.c to properly account for case when pe_start=0 and the first
physical extent is to be released (currently skip the first extent to
avoid discarding the PV label).
2011-04-13 18:26:39 +00:00
Mike Snitzer
fdc8670327 Add "devices/issue_discards" to lvm.conf.
Issue discards on lvremove if enabled and both storage and kernel have support.
2011-04-12 21:59:01 +00:00
Mike Snitzer
116362d11b fix s/then/than/ typo in lvm.conf.5.in 2011-04-12 21:21:08 +00:00
Zdenek Kabelac
8c162552d7 Document pv_min_size in lvm.conf manpage 2011-03-10 15:20:10 +00:00
Milan Broz
825b169e22 Fix dmsetup man page typo (John Bradshaw) 2011-03-10 13:11:45 +00:00
Petr Rockai
61394ca4aa As requested in BZ 454618:
- dmeventd -R will continue to start up even if no dmeventd is currently
  running + a test for this behaviour
- add -R to dmeventd manpage
2011-03-02 12:49:13 +00:00
Alasdair Kergon
059afedcab mention vgreduce in pvremove man page 2011-02-28 19:40:04 +00:00
Jonathan Earl Brassow
84d2039b7f bug 659264: more examples for pvmove 2011-02-09 22:24:55 +00:00
Petr Rockai
94a0d58cd1 Fix a typo in pvmove.8 (fixes BZ 673618, spotted by John Bradshaw). 2011-02-09 17:42:15 +00:00
Zdenek Kabelac
a1dbe74c4c Place back some common options
Until man pages are generated keep some common options with all commands.
2011-02-04 21:19:03 +00:00
Zdenek Kabelac
880507498a Add --addnodeonresume, --addnodeoncreate
Add new function dm_task_set_add_node() to select between 2 types
of node creation in device directory.

DM_ADD_NODE_ON_RESUME is now default and ensures node is created on
resume. Old original behavior is accessible with DM_ADD_NODE_ON_CREATE.
In this case node would be created during dmsetup create --notable.

For the user 2 new options for dmsetup create are added:
[{--addnodeonresume | --addnodeoncreate }]

Properly working node creation on resume is needed for proper operation
stacking and ability to correctly check in which state the device should
after whole udev transation.
2011-02-04 19:33:53 +00:00
Zdenek Kabelac
667d14e377 Updating man pages 2011-01-28 16:03:38 +00:00
Alasdair Kergon
16b1fe4a08 Bring lvscan man page up-to-date. 2011-01-24 20:02:07 +00:00
Milan Broz
92e6277c28 Add -f (don't fork) option to clvmd and fix clvmd -d<num> description. 2011-01-17 23:13:14 +00:00